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|
#!/bin/bash
VERSION=0.10
source /etc/init.d/functions.sh
die(){
if [ -n "${1}" ]; then
echo; eerror $1; echo
fi
exit 1
}
has() {
[[ " ${@:2} " == *" $1 "* ]]
}
usage(){
local rc=${1:-0}
shift
cat <<-EOF
empi-${VERSION}
Usage: ${HILITE}empi${NORMAL} ${GOOD}[actions]${NORMAL} ${BRACKET}[options]${NORMAL}
Actions:
${GOOD}-c, --create${NORMAL} pkgspec (Re)Initialize setup for mpi class.
${GOOD}-a, --add${NORMAL} pkgspec(s) Add packages using specified mpi class.
${GOOD}-d, --delete${NORMAL} class Remove everything related to specified class.
Options:
${GOOD}-C, --class${NORMAL} class MPI class to use.
${GOOD}-t, --tree${NORMAL} path Path to portage tree to use ebuilds from.
${GOOD}-o, --overlaydir${NORMAL} path Directory to use for the empi portage overlay.
Defaults to MPI_OVERLAY_DIR [${DEFAULT_MPI_OVERLAY_DIR}]
${GOOD} --noemerge${NORMAL} Do not call emerge, only preform overlay setup.
Notes:
${HILITE}-${NORMAL} pkgspec is specified by a package string. Without a version, the
portageq best_visible is used. For example, all of the following
are valid: openmpi, sys-cluster/openmpi, =sys-cluster/openmpi-1.2.5.
${HILITE}-${NORMAL} class (-c) is user defined but must be prefixed with "mpi-"
Examples:
${BRACKET}Create a new class based on openmpi.${NORMAL}
empi --create sys-cluster/openmpi --class mpi-ompi
${BRACKET}Rebuild the above.${NORMAL}
emerge mpi-ompi/openmpi
${BRACKET}Add hpl to mpi-ompi${NORMAL}
empi --class mpi-ompi --add sys-cluster/hpl
EOF
[[ -n $* ]] && echo && eerror "Error: $*"
exit ${rc}
}
class_is_valid() {
[[ -z ${CLASS} ]] && usage 1 "No class defined."
[[ ${CLASS} != mpi-* ]] && usage 1 "Classes must be prefixed with mpi-"
[[ ${CLASS//./} != ${CLASS} ]] && usage 1 "Classes cannot contain . (period)"
}
is_class_category() {
local i
for i in $(eselect mpi list -p); do
[[ ${1} == ${i} ]] && return 0
done
return 1
}
split_atom() {
local cpv c pf pn pv
cpv=$(portageq best_visible / ${1})
if [[ -z ${cpv} || ${rc} -ne 0 ]]; then
cpv=$(portageq best_visible / =${1})
[[ -z ${cpv} || ${rc} -ne 0 ]] && return 1
fi
c=${cpv%/*}; pf=${cpv#${c}/}; pn=${pf%%-[0-9]*}; pv=${pf#${pn}-}
echo "${c} ${pn} ${pv}"
}
parse_pkgspecs() {
local atom i
for ((i=0; i<${#TARGETS[@]}; i++)); do
atom=($(split_atom ${TARGETS[i]}))
if [[ $? -ne 0 ]]; then
eerror "Unable to find a unique package or valid version for ${TARGETS[i]}"
eerror "Is the package unmasked and unblocked normally?"
die ""
fi
TARGETS[i]=${atom[0]}/${atom[1]}-${atom[2]}
done
}
# handle_etc_portage package_spec
# parses /etc/portage/package.{keywords,use}. If ${CLASS}/${pn} is seen, we don't
# do a thing. Otherwise copy any lines that have ${cat}/${pn} inserting them again
# with the new category. Also keywords virtual/${CLASS} if necessary.
handle_etc_portage() {
local atom=( $(split_atom ${1}) )
local ext line gfiles f
for ext in "keywords" "use"; do
if [ -d /etc/portage/package.${ext} ]; then
gfiles="/etc/portage/package.${ext}/*"
f=/etc/portage/package.${ext}/${CLASS}
else
gfiles="/etc/portage/package.${ext}"
f=/etc/portage/package.${ext}
fi
if ! grep "^[>=<]*${CLASS}/${atom[1]}" ${gfiles} &>/dev/null; then
grep -h "^[>=<]*${atom[0]}/${atom[1]}" ${gfiles} 2>/dev/null \
| sed "s,${atom[0]},${CLASS}," \
| while read line; do
echo "${line}" >> ${f}
[[ ${VERBOSE} -ne 0 ]] \
&& einfo "Addition to ${f}: ${line}"
done
elif [[ ${VERBOSE} -ne 0 ]]; then
ewarn "Keys for ${CLASS}/${atom[1]} already exist in ${f}. Will not replicate them."
fi
if ! grep "^${CLASS}/mpi" ${gfiles} &>/dev/null; then
grep -h "^virtual/mpi" ${gfiles} 2>/dev/null \
| sed "s,/mpi,/${CLASS}," \
| while read line; do
echo "${line}" >> ${f}
[[ ${VERBOSE} -ne 0 ]] \
&& einfo "Addition to ${f}: ${line}"
done
elif [[ ${VERBOSE} -ne 0 ]]; then
ewarn "Keys for virtual/${CLASS} already exist. Will not replicate."
fi
done
}
get_ebuild_dir() {
local d a
local want_uses_mpi=${2:-0}
local found=0
a=($(split_atom ${1}))
[[ $? -ne 0 ]] && die "Unable to find a unique package or valid version for ${1}."
is_class_category ${a[0]} && die "It makes no sense to build a new mpi-class from a current one."
if [[ -z ${PORTAGE_TREE} ]]; then
for d in $(portageq portdir_overlay) $(portageq portdir); do
if [[ ${want_uses_mpi} -ne 0 ]]; then
[[ -f "${d}/${a[0]}/${a[1]}/${a[1]}-${a[2]}.ebuild" ]] \
&& ebuild_uses_mpi ${d}/${a[0]}/${a[1]} ${a[1]}-${a[2]} \
&& found=1
else
[[ -f "${d}/${a[0]}/${a[1]}/${a[1]}-${a[2]}.ebuild" ]] && found=1
fi
[[ ${found} -ne 0 ]] && break
done
if [[ ${found} -ne 0 ]]; then
PORTAGE_TREE=${d}
else
die "Could not find an ebuild for ${a[0]}/${a[1]}-${a[2]}."
fi
fi
EBUILD_DIR="${PORTAGE_TREE}/${a[0]}/${a[1]}"
}
ebuild_uses_mpi() {
grep 'inherit .*mpi' "${1}/${2##*/}.ebuild" &>/dev/null
}
link_ebuild_dir() {
ln -snf "${EBUILD_DIR}" "${MPI_OVERLAY_DIR}"/${CLASS}/${EBUILD_DIR##*/} \
|| die "Failed to link ${EBUILD_DIR} to ${MPI_OVERLAY_DIR}/${CLASS}/${EBUILD_DIR##*/}"
}
# TODO: Needs to be called after get_ebuild_dir which sets $PORTAGE_TREE
create_virtual_mpi() {
local d_dir="${MPI_OVERLAY_DIR}"/virtual/${CLASS}
local version d_file mpi_ebuild s_dir
# Try to get virtual/mpi from the same tree as the other ebuilds.
# Otherwise we fall back and get it from anywhere.
version=$(portageq best_visible / ${__VIRTUAL_MPI_VERSION})
version=${version#virtual/mpi-}
for s_dir in ${PORTAGE_TREE} $(portageq portdir_overlay) $(portageq portdir); do
mpi_ebuild="${s_dir}"/virtual/mpi/mpi-${version}.ebuild
[ -f "${mpi_ebuild}" ] && break;
done
[[ ! -f "${mpi_ebuild}" ]] \
&& die "Cannot satisfy ${__VIRTUAL_MPI_VERSION}"
d_file=${CLASS}-${version}.ebuild
mkdir -p "${d_dir}" || die "Could not create ${d_dir}"
cp "${mpi_ebuild}" "${d_dir}"/${d_file} \
|| die "Could not copy ${mpi_ebuild} to ${d_dir}/${d_file}"
sed -i "s,sys-cluster/,${CLASS}/," ${d_dir}/${d_file}
ebuild ${d_dir}/${d_file} digest > /dev/null \
|| die "Failed to digest ${d_dir}/${d_file}"
}
set_metadata() {
# Snagged from crossdev: http://git.overlays.gentoo.org/gitweb/?p=proj/crossdev.git
# 3cab8c394fec72f2353e209d98429dd1aaf1d337
# for people who have eclasses spread over their overlays, generate
# a layout.conf file so portage can find them. this is a crapshoot
# when diff overlay sources have conflicting eclasses, but nothing
# we really can do about that.
local autogen_tag="# Autogenerated and managed by empi"
local meta=${MPI_OVERLAY_DIR}/metadata
local layout=${meta}/layout.conf
local d name masters thin_manifests="false"
mkdir -p "${meta}"
if [[ -e ${layout} ]] ; then
if ! grep -qs "^${autogen_tag}" "${layout}" ; then
einfo "leaving metadata/layout.conf alone in ${MPI_OVERLAY_DIR}"
return
fi
# We are managing it, so blow it away
rm -f "${layout}"
fi
# build up a list of possible repos where we can pull from
for d in ${PORTDIR_OVERLAY} "${PORTDIR}" ; do
[[ -z ${d} ]] && continue
name=
if [[ -e ${d}/profiles/repo_name ]] ; then
name=$(<"${d}"/profiles/repo_name)
fi
[[ -z ${name} ]] && continue
# If this repo has an eclass dir, mark it as a master.
# Note: portage reads the masters list in reverse order,
# so we have to prepare it the same way.
if [[ -d ${d}/eclass ]] ; then
has ${name} ${masters} || masters="${name} ${masters}"
fi
# If one of the overlays uses thin manifests, then turn it on
if [[ -z ${this_manifests} ]] && has ${name} ${masters} && \
sed \
-e 's:#.*::' \
-e 's:^[[:space:]]*::' \
-e 's:[[:space:]]*$::' \
-e 's:[[:space:]]*=[[:space:]]*:=:' \
"${d}/metadata/layout.conf" 2>/dev/null | \
gawk -F= '{
if ($1 == "use-manifests") um = $2
if ($1 == "thin-manifests") tm = $2
}
END {
exit !(um != "false" && tm == "true")
}'
then
einfo "enabling thin-manifests due to ${d}"
this_manifests="use-manifests = true\nthin-manifests = true"
fi
done
# write out that layout.conf!
cat <<-EOF > "${layout}"
${autogen_tag}
# Delete the above line if you want to manage this file yourself
masters = ${masters% }
$(printf '%b' "${this_manifests}")
EOF
}
do_emerge() {
[[ ${DO_EMERGE} -eq 0 ]] && return 0
einfo "Emerging $*"
emerge ${EMERGE_OPTS} $* || die "emerge failed!"
}
# We should have only one target here.
create_class() {
local mpi_class_pkg d mpi_class_pn
[[ ${#TARGETS[@]} -ne 1 ]] && die "Can only create one class at a time."
for d in $(eselect mpi list -p); do
[ "${d}" == "${CLASS}" ] && die "${CLASS} has already been created."
done
# Prevent laziness
[[ ${TARGETS[0]} == ${TARGETS[0]##*/} ]] \
&& TARGETS[0]="sys-cluster/${TARGETS[0]}"
parse_pkgspecs
get_ebuild_dir ${TARGETS[0]} 1
create_virtual_mpi
mpi_class_pn=${EBUILD_DIR##*/}
mpi_class_pkg=${TARGETS[0]}
handle_etc_portage ${TARGETS[0]}
TARGETS[0]="=${CLASS}/${TARGETS[0]##*/}"
# Refuse to break systems. If there is already a class
# installed in that directory, we're not going to add another one as
# the eclass doesn't fix one problem just to introduce a bigger one.
for d in $(find ${MPI_OVERLAY_DIR}/${CLASS} -maxdepth 1 -mindepth 1 -type l 2>/dev/null);do
d=${d##*/}
[[ ${d} == ${mpi_class_pn} ]] && continue
for i in ${MPI_ALL_IMPS}; do
[[ ${i} == ${d} ]] \
&& die "${CLASS} already has MPI implementation ${d}, refusing to add ${mpi_class_pn}"
done
done
if [[ -d "${MPI_OVERLAY_DIR}"/${CLASS} ]]; then
[[ ${VERBOSE} -ne 0 ]] && ewarn "Overlay for ${CLASS} has already been created."
else
mkdir -p ${MPI_OVERLAY_DIR}/${CLASS}
link_ebuild_dir
set_metadata
fi
if ! grep "^${CLASS}$" /etc/portage/categories &>/dev/null; then
echo "${CLASS}" >> /etc/portage/categories
fi
cat << EOF
Creating ${HILITE}${CLASS}${NORMAL}
Class: ${GOOD}${CLASS}${NORMAL}
MPI Implementation: ${GOOD}${mpi_class_pkg}${NORMAL}
Source: ${GOOD}${EBUILD_DIR}${NORMAL}
Destination: ${GOOD}${MPI_OVERLAY_DIR}/${CLASS}${NORMAL}
EOF
do_emerge ${TARGETS[0]}
}
add_packages(){
local i j deps
[[ -d "${MPI_OVERLAY_DIR}"/${CLASS} ]] || die "Class ${CLASS} has not been created yet."
[[ ${#TARGETS[@]} -lt 1 ]] && die "You need to specify at least one package"
parse_pkgspecs
for ((i=0;i<${#TARGETS[@]};i++)); do
get_ebuild_dir ${TARGETS[i]}
create_virtual_mpi
if ebuild_uses_mpi ${EBUILD_DIR} ${TARGETS[i]}; then
link_ebuild_dir
handle_etc_portage ${TARGETS[i]}
TARGETS[i]="=${CLASS}/${TARGETS[i]##*/}"
else
TARGETS[i]="=${TARGETS[i]}"
fi
# I don't know about this, but do you have a better idea?
deps="$(emerge --color=n --onlydeps -p --quiet ${TARGETS[i]} | grep '^\[')"
if [[ $? -ne 0 ]]; then
emerge --onlydeps -p ${TARGETS[i]}
die "Unable to calculate deps for ${TARGETS[i]}"
fi
deps=( $(echo ${deps} | sed -e 's:\[[a-z]* [A-Z] \] :=:g') )
for ((j=0;j<${#deps[@]};j++)); do
get_ebuild_dir ${deps[j]}
if ebuild_uses_mpi ${deps[i]}; then
link_ebuild_dir
fi
done
done
cat << EOF
Adding packages to ${HILIGHT}${CLASS}${NORMAL}
Packages: ${GOOD}${TARGETS[@]}${NORMAL}
EOF
do_emerge ${TARGETS[@]}
}
delete_class() {
local pkgs=( $(ls /var/db/pkg/${CLASS}/ 2>/dev/null) )
local ext d i rc
[[ -d "${MPI_OVERLAY_DIR}"/${CLASS} ]] || die "Class ${CLASS} has not been created yet."
rc=0
for (( i=0; i<${#pkgs[@]}; i++)); do
pkgs[i]="=${CLASS}/${pkgs[i]}"
done
if [[ ${#pkgs[@]} -gt 0 ]] && ! emerge -C ${EMERGE_OPTS/-u/} ${pkgs[@]}; then
die "Failed to unmerge ${pkgs[@]}"
fi
for ext in "keywords" "use"; do
if [ -d /etc/portage/package.${ext} ]; then
rm /etc/portage/package.${ext}/${CLASS} &>/dev/null
rc=$((rc+$?))
elif [ -f /etc/portage/package.${ext} ]; then
sed -i -e "/^${CLASS}\//d" /etc/portage/package.${ext}
rc=$((rc+$?))
fi
done
[ ! -f /etc/portage/categories ] || sed -i -e "/^${CLASS}$/d" /etc/portage/categories
rc=$((rc+$?))
for d in $(ls "${MPI_OVERLAY_DIR}"/${CLASS}/ 2>/dev/null); do
rm "${MPI_OVERLAY_DIR}"/${CLASS}/${d}
rc=$((rc+$?))
done
for d in "${MPI_OVERLAY_DIR}/${CLASS}" /var/db/pkg/${CLASS}; do
[ ! -d "${d}" ] || rmdir "${d}"
rc=$((rc+$?))
done
[[ ${rc} -ne 0 ]] \
&& ewarn "Errors were encountered during delete_class()"
return ${rc}
}
# Internal variables.
__VIRTUAL_MPI_VERSION=">=virtual/mpi-2.0"
ACTION=""
CLASS=""
PORTAGE_TREE=""
MPI_OVERLAY_DIR=""
VERBOSE=0
DO_EMERGE=1
EMERGE_OPTS="-u" # Packages can be recompiled by hand if necessary.
TARGETS=""
DEFAULT_MPI_OVERLAY_DIR=/var/cache/overlays/mpi
MAKE_CONF=/etc/make.conf
PORTDIR_OVERLAY=""
PKGDIR=""
EBUILD_DIR=""
while [[ $# -gt 0 ]]; do
case $1 in
-h|--help)
usage;;
-c|--create)
ACTION="${ACTION}create";;
-a|--add)
ACTION="${ACTION}add";;
-d|--delete)
ACTION="${ACTION}delete"
shift; CLASS=${1};;
-C|--class)
shift; CLASS=${1};;
-t|--tree)
shift; PORTAGE_TREE=${1};;
-o|--overlaydir)
shift; MPI_OVERLAY_DIR=${1};;
-v|--verbose)
VERBOSE=1;;
--noemerge)
DO_EMERGE=0;;
-*)
EMERGE_OPTS="${EMERGE_OPTS} ${1}";;
*)
TARGETS=( $(echo ${TARGETS[@]}) ${1} );;
esac
shift
done
[[ ${UID} -ne 0 ]] && die "You must be root to preform any actions."
if [ -s /etc/portage/make.conf ]; then
MAKE_CONF=/etc/portage/make.conf
fi
: ${MPI_OVERLAY_DIR:=$(portageq envvar MPI_OVERLAY_DIR)}
if [ -z "${MPI_OVERLAY_DIR}" ]; then
MPI_OVERLAY_DIR=${DEFAULT_MPI_OVERLAY_DIR}
einfo "MPI_OVERLAY_DIR not set, defaulting to ${MPI_OVERLAY_DIR} and updating make.conf"
echo "MPI_OVERLAY_DIR=\"${MPI_OVERLAY_DIR}\"" >> ${MAKE_CONF}
fi
if [ ! -d "${MPI_OVERLAY_DIR}" ]; then
mkdir -p "${MPI_OVERLAY_DIR}" || die "Failed to mkdir ${MPI_OVERLAY_DIR}"
fi
export PORTDIR_OVERLAY="${MPI_OVERLAY_DIR} $(portageq portdir_overlay)"
export PKGDIR="$(portageq envvar PKGDIR)/mpi/${CLASS}"
export PORTDIR="$(portageq envvar PORTDIR)"
[[ -z ${ACTION} ]] && usage 1 "No action defined."
class_is_valid
set_metadata
[[ ${ACTION} == *create* ]] && create_class
[[ ${ACTION} == *add* ]] && add_packages
[[ ${ACTION} == *delete* ]] && delete_class
|